wannacry | 9011eabd0d3becb2f361ee1545f17aa45eb2ff507ab9ecf8d87680ab65f538fd

General

Target

2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Size

5.0MB
MD5

68498cf8ee3f848cdb86e1ad80be9fae
SHA1

821d5f53b3e87fc2167d47790a309d1af8e93fda
SHA256

9011eabd0d3becb2f361ee1545f17aa45eb2ff507ab9ecf8d87680ab65f538fd
SHA512

7156e090f4006d36497c988df00325fe87647d9dd05bb077f258edadaf9373e1e529985ffaaaa4dca0d664d9ceda23b6a8abecec30fa757ab43f05e0bd96a931
SSDEEP

49152:2nAQqMSPbcBFej/vNRx+TSqTdX1HkQo6SAARdhnvxJM0H9mEa6Vv:yDqPoBQz1RxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3329) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
2528	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B966E5BE-CC04-4B37-8171-8291B76D0C04}	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B966E5BE-CC04-4B37-8171-8291B76D0C04}\WpadDecisionTime = c014ba712d40db01	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B966E5BE-CC04-4B37-8171-8291B76D0C04}\WpadNetworkName = "Network 3"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-70-dc-7f-2c-3b	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B966E5BE-CC04-4B37-8171-8291B76D0C04}\4e-70-dc-7f-2c-3b	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-70-dc-7f-2c-3b\WpadDecisionTime = c014ba712d40db01	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-70-dc-7f-2c-3b\WpadDecision = "0"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0102000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B966E5BE-CC04-4B37-8171-8291B76D0C04}\WpadDecisionReason = "1"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B966E5BE-CC04-4B37-8171-8291B76D0C04}\WpadDecision = "0"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-70-dc-7f-2c-3b\WpadDecisionReason = "1"	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2120
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2528

C:\Users\Admin\AppData\Local\Temp\2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-26_68498cf8ee3f848cdb86e1ad80be9fae_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
c18b80d1096de9bde1a0627780e91d61

SHA1
1193e6188ee0d68e26f0c95db547f239241ba83f

SHA256
320b9af9ff9ad46ee82c1cfebb2e8ff890174c6b4780893d3156cb881a3c91a0

SHA512
f38fed55fcb48c7b19e5055dfe6f4dcab20644f5f3a1ee7dc5b3f22db0d7f800b88a486052704a81daed7678041259070b37dea5db198c6ea7bb295fc10b3e06

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